• International Journal of Computer Science & Network Security
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• v.24 no.3
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• pp.201-210
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• 2024

In empirical software engineering research, there is an increased use of questionnaires and surveys to collect information from practitioners. Typically, such data is then analyzed based on overall, descriptive statistics. Overall, they consider the whole survey population as a single group with some sampling techniques to extract varieties. In some cases, the population is also partitioned into sub-groups based on some background information. However, this does not reveal opinion diversity properly as similar opinions can exist in different segments of the population, whereas people within the same group might have different opinions. Even though existing approach can capture the general trends there is a risk that the opinions of different sub-groups are lost. The problem becomes more complex in case of longitudinal studies where minority opinions might fade or resolute over time. Survey based longitudinal data may have some potential patterns which can be extracted through a clustering process. It may reveal new information and attract attention to alternative perspectives. We suggest using a data mining approach to finding the diversity among the different groups in longitudinal studies (agile skeptics). In our study, we show that diversity can be revealed and tracked over time with the use of clustering approach, and the minorities have an opportunity to be heard.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.11 no.8
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• pp.3070-3075
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• 2010

Through Web 2.0 days, the end users express their opinions and thoughts for blogs and community spaces on the Internet. These opinions and thoughts are used to purchase products, however, users only refer to a few comments not overall opinions. Opinion Analysis System is an opinion search, developed from a natural language search, which analyzes the product's positive or negative evaluations using opinions of products and services on the Internet. In this paper, we suggest a syntactic analysis and inverse processing system that studies and processes 'Positive', 'Negative', 'Neutral' in addition to 'Inverse' information to analyze 'positive' or 'negative' for the core of sentences in Opinion Analysis Service.

• Journal of Information Technology Services
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• v.14 no.3
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• pp.33-48
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• 2015

Recently, many users frequently share their opinions on diverse issues using various social media. Therefore, many governments have attempted to establish or improve national policies according to the public opinions captured from the various social media. In this paper, we indicate several limitations of traditional approaches for analyzing public opinions about science and technology and provide an alternative methodology to overcome the limitations. First of all, we distinguish science and technology analysis phase and social issue analysis phase to reflect the fact that public opinion can be formed only when a certain science and technology is applied to a specific social issue. Next, we apply a start list and a stop list successively to acquire clarified and interesting results. Finally, to identify most appropriate documents fitting to a given subject, we develop a new concept of logical filter that consists of not only mere keywords but also a logical relationship among keywords. This study then analyzes the possibilities for the practical use of the proposed methodology thorough its application to discovering core issues and public opinions from 1,700,886 documents comprising SNS, blog, news, and discussion.

• Korea Journal of Hospital Management
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• v.5 no.2
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• pp.78-99
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• 2000

Objectives: The purpose of this study was to evaluate the opinions of hospital managers on DRG pilot study. Methods: Managers of 800 hospitals which had participated in DRG pilot study during the period 1997-1999, were requested to respond to structured self-administerd questionnaire. The questionnaire was composed with six categories: the motivation and satisfaction for the DRG pilot study, the opinions on the level of unit price, the appropriateness of DRG classification, the change of medical service quality during the pilot study, the patient's complains resulted from DRG system. and the opinions on the nation-wide application of DRG system. Results : Of the 800 subjects, 327(clinic, 210: 25 hospitals, 82 general hospitals, and 16 tertiary hospitals) completed the questionnaire, and the overall response rate was 41%, 121 hospitals(27%) answered that they participated in DRG pilot study because of convenience of claims and 118 hospitals(35%) dissatisfied with DRG system. 251 hospitals(85%) thought that the level of unit price under the DRG system was same as or lower than that of fee-for service. 297 hospitals(92%) responded that DRG classification should be modified and 137 hospitals(47%) experienced deterioration of medical service quality during the DRG pilot study. The 116 hospitals(35%) experienced the patient's complains resulted from DRG system. The 85 hospitals(88%) didn't want nation-wide application of DRG system. Conclusion: Most of the responded managers seemed to have negative opinions on DRG pilot study, even though they had been participated voluntarily. Further studies and extensive evaluations of DRG reimbursement system are needed before nation-wide application.

• The KIPS Transactions:PartD
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• v.18D no.4
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• pp.237-244
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• 2011

Opinion Mining summarizes with classifying sensitive opinions of customers in huge online customer reviews for the attributes of products or services by positive and negative opinions. Because the customers represent their interests through subjective opinions as well as objective facts, the existing opinion mining techniques, which can analyze just the sensitive opinions, need to be expanded.. In this paper, We propose the novel entity association network model which expands the existing opinion mining techniques. The entity association model can not only represent positive and negative degree of the sensitive opinions, but also can represent the degree of the associations and relative importances between entities. We designed and implemented the customer reviews analysis system based on the entity association network model. We recognized that the system can represent more abundant information than the existing opinion mining techniques.

• Journal of Science Education
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• v.45 no.3
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• pp.304-316
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• 2021

The purpose of this study is to analyze high school students' critical opinions on others' inquiries in small group open inquiry. Forty-one high school students participated in these activities at the inquiry planning stage and the intermediate stage of inquiry. In the two activities, 595 and 233 opinions were presented respectively, and analyzed into categories based on the inquiry process. The main research results are as follows: first, many opinions were presented in the areas of 'problem recognition and hypothesis setting' and 'design of inquiry' in the feedback on the inquiry plan, especially related to 'revision and addition of research problems,' 'research targets and conditions,' and 'control of variables.' Second, in the feedback on the results of the inquiry, there were many opinions related to 'report preparation' and 'design of inquiry' area. Based on the research results, implications related to the application of critical opinion activity were discussed.

• Journal of the Korean Institute of Navigation
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• v.25 no.3
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• pp.297-308
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• 2001

The aim of this study is to examine opinions discussed on the structure of the PA between MOMAF, Pusan city and Inchon city by analysing and reviewing the reports and debates with the Promotion Committee. In addition, this paper is to find out the reasons why they have different views and opinions over the establishment of PA and to analyze how such conflicting opinions will influence on future operation in the PA. On the bases of the above research, this study suggests a more rational proposal to establish the PA not from the result of the negotiation between the interested parties, which have involved in the process of establishment of the PA, but from the viewpoint of principles.

• Journal of the Korean housing association
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• v.13 no.4
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• pp.67-73
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• 2002

The purpose of this study is to investigate the reflection degree of residents' opinions and their participation, on the premise that the reconstruction of apartments is a process of the concrete realization of residents' dwelling needs and of the recreation of living spaces. Here are some of results of this research; Although apartment residents who have experienced the process of reconstruction have a great desire to participate and a wide range of participation, the proper procedure of participation is not prepared and the contents of reconstruction is not fully understood. And the residents have the different opinions on 'height and mass of apartment' and 'amount of compensation and payment'. Meanwhile, the residents believe that all of them should take part in the participation process and some government interventions are needed. Accordingly, various ways for resident participation in the process of reconstruction are to be provided and new techniques for encouraging public participation are to be sought.

• Journal of Korean Medical classics
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• v.31 no.1
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• pp.95-112
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• 2018

Objectives : This paper tried to explain the meaning of Shaoyangzhugu in Huangdineijing. Methods : The opinions on these matters that can be found in the past studies are analyzed to assess the strengths and limitations of today's explanations on the meaning of Shaoyangzhugu. Furthermore, this study attempted to suggest a more rational way of understanding that can supplement the opinions before. Results : The opinions that fail to provide a rational explanation on Shaoyangzhugu were disposed. It was found that the explanation of Shaoyangzhugu through the Shaoyang's pivot function has a potential of providing a rational understanding of Shaoyangzhugu. Following this, this study made a deduction based on the functions of gallbladder found in the Huangdineijing and explained the Shaoyang's pivot function. This study then proceeded to provide an explanation regarding Shaoyangzhugu based on this. Conclusions : Shaoyangzhugu in Huangdineijing is a function to maintain homeostasis of the skeleton of the whole body by Shaoyang's pivot function.

• Electronics and Telecommunications Trends
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• v.34 no.6
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• pp.1-16
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• 2019

The paper presents five strategic opinions for promoting the fourth industry revolution through the supply of 5G additional frequency. The assessments are on the basis of 5G frequency utilization technologies and services, with reference to 3GPP 5G New Radio standards, after investigating the domestic 1G, 2G, 3G, 4G, and 5G mobile communication services as well as the use of mobile radio frequency and spectrum. The presented opinions contain the frequency supply of contiguous-wide bandwidth channels, harmonized frequency supply between licensed and unlicensed spectrum, the existing 4G frequency recycle for increasing 5G coverage and capacity, balance frequency supply in the multi-band for 5G services, and the development of 5G vertical frequency for industry. The aim is that the presented five strategic opinions can offer guidance for the upcoming plan of domestic 5G additional frequency supply.